<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script src="https://unpkg.com/vue@next"></script>
</head>

<body>
    <div id="counter">
        Counter:{{counter}}
    </div>
    <script>
        const Counter = {
            data() {
                return {
                    counter: 0,
                };
            },
        };
        Vue.createApp(Counter).mount('#counter')
    </script>
</body>

</html>